Concrete-mixer.



0. S. RIBLBT. CONCRETE MIXER. APPLICATION FILED JAN. 8. 1012.

1, 1 1 1, 1 80. Patented Sept. 22, 1914.

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Ifi L I 0 L I o WITNESSES: [NI/,ENTOR. l-g}. QW BY A TZORNE Y.

STATES PATENT OFFICE.

' OLIVER s. RIBLET, on ERIE, PENNSYLVANIA.

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To all whom it may concern:

Be it known that I, OLIVER S. RIBLET, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented new and use ful Improvements in Concrete-Mixers, of which the following is a specification,

This invention relates to concrete mixers, and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the claim.

The object of theinvention is to provide a rotating concrete mixer with compartments whereby apart of the drmnmay be utilized for mixing while the other part of the drum is discharging.

In. the accompanying drawings which 'form a part of this specification and where-.

in like numerals designate like parts; Figure 11s a vertical sectlonof a concrete mixer embodying my invention. Fig. 2 is the dis:

charge end view of the same. Y 1 designates the drum. This may be of any desired construction.

2 designates the mixing chamber. The material is delivered to this mixing chamber through an opening 17 in the end 2 of the drum.

3 designates the discharge chamber.

The chambers 2 and 3 are separated by the partition t rhaving an opening 5,.preferably central. A cover 6. is provided for the opening 5. The cover is secured to a sleeve 8, and the sleeve 8 is mounted on a rod 7. The rod 7 is secured in a mounting 9 extending from the walls of the drum to the center and the sleeve 8 extends into a mounting 10 extending from the walls of the drum to the center. post' 12 extending upwardly from the platform or frame 14 on which the drum is mounted. The end of the sleeve is secured to the lever 11 so that by swinging the lever 11, the sleeve may be moved axially on the rod 7, thus moving the cover 6 to open and close the opening 5. J p

The drum is mounted on the usual rollers 13 and is provided with any scheme of driving mechanism (not shown.) now in common use. The flights 15 are arranged in the mixing chamber 2.. These flights 15, ex-

tend inwardly from the circumferential I Walls of the mixing chamber and are at an Specification of Letters Patent.

The leverqll is mounted on a 2 l angle to a plane extending through the axis of the drum, the result'being to give the Patented Sept. 22, 1914. Application filed January 8, 1912. Serial No. 670,032.

flights a downward inclination toward the opening 5 with their upward movement. The flights also preferably have the extension 15 at the partition end which is ar-.

ranged to guide the material as it moves along the flights toward the center. When the cover 6 is opened, the material as it.is

carried up by the flights 15 slides o'n saidf flights toward the center and shoots through the opening 5 in the discharge end 3. During the mixing operation, the cover 6 is 'maintained in a closed position and when rapidity thrown into the discharge end of the .inixer when. the cover may be again v closed and a fresh batch delivered to the mixing end of the, drum. Flights 16 are ar ranged in the discharge end of the drum. These are. inclined so as tocarry the material toward the discharge end of the drum. If desired, the discharge end of the drum may be provided with a spout 18 into which the material drops as it is carried'up by the flights 16.

By carrying the cover 6 on a mounting carried directly by the drum the cover when closed has no movement relatively to the partition. This is of particular advantage where the drum has a roller mounting that the axis of the drum so'mounted has more or less movement in directions at right angles to the axis.

What I claim as new is: g

In a concrete mixer, the combination ot a rotatable drum; rollers operating on the periphery of the drum and forming a mountwitnesses.

- OLIVER S. RIBLET.

Witnesses:

CHARLES G. BREVILLIER,- B. M. HARTMAN. 

